Investments (Fixed Maturity Proceeds) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Debt Securities [Line Items]
Proceeds from maturities/prepayments			$ 31,081	$ 20,299
Available for sale Securities Netting
Debt Securities [Line Items]
Non cash Or Part Non cash Divestitures Amount Of Consideration Received			(52)	183
Fixed maturities \| Available-for-sale
Debt Securities [Line Items]
Proceeds from sales	$ 8,091	$ 4,191	16,572	9,103
Proceeds from maturities/prepayments	7,767	5,252	14,561	11,013
Gross investment gains from sales and maturities	155	126	514	408
Gross investment losses from sales and maturities	(598)	(233)	(1,470)	(540)
Write-downs recognized in earnings	(86)	(57)	(251)	(176)
(Addition to) release of allowance for credit losses	$ 53	$ 27	$ (13)	$ 107

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